Any actively supported games you cannot play with another clan. Since we're presently not active on gamebattles you could consult your game commander - typically you would want to gauge interest within the clan itself for playing GB matches before anything else.

If your question was 'Do we ever play on Gamebattles?"

The answer is Yes. We have many times. It's all at the GCs discretion. Running GB matches is a pain in the @ss. If people are up to it, there's no rule against it.